Frost Unit 7 Review Expressions, Equations, Inequalities

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols such as <, >, ≤, or ≥.

Front

What does the symbol '>' mean in an inequality?

Back

The symbol '>' means 'greater than.' For example, x > 5 means x is greater than 5.

Front

What does the symbol '<' mean in an inequality?

Back

The symbol '<' means 'less than.' For example, x < 3 means x is less than 3.

Front

What does the symbol '≥' mean in an inequality?

Back

The symbol '≥' means 'greater than or equal to.' For example, x ≥ 4 means x is greater than or equal to 4.

Front

What does the symbol '≤' mean in an inequality?

Back

The symbol '≤' means 'less than or equal to.' For example, x ≤ 2 means x is less than or equal to 2.

Front

How do you simplify the expression 5x + 2.1 - 3x - 4.1?

Back

The simplified expression is 2x - 2.

Front

What is the solution to the inequality r > 48?

Back

The solution indicates that r can be any value greater than 48.

Front

When graphing the inequality x > 45, should the circle be open or closed?

Back

The circle should be open because the inequality does not include 45.

Front

What does it mean if an inequality is represented by an open circle on a number line?

Back

An open circle indicates that the number at that point is not included in the solution set.

Front

What does it mean if an inequality is represented by a closed circle on a number line?

Back

A closed circle indicates that the number at that point is included in the solution set.